$125.0 Buy It Now or Best Offer
free,30-Day Returns
Seller Store valtek_2005
(16042) 99.8%,
Location: Bucuresti, default
Ships to: US,
Item: 255478415340
Restocking Fee:No
Return shipping will be paid by:Buyer
All returns accepted:Returns Accepted
Item must be returned within:14 Days
Refund will be given as:Money Back
6P14P-EV:6P14P-EV
Country/Region of Manufacture:Russian Federation
Tube Type:Vacuum Tubes
Product Type:Tubes
Type:NOS Tube
MPN:Does Not Apply
Russian Military:Russian Military
Matched QUAD 6P14P-EV /EL84/7189/ TUBES TESTED WITH ROETEST BY CURVES. NOS/NIB Military equipment,”OTK”, high reliability. Military quality check passed (rhombus) Made in “REFLECTOR” Plant in 1985 year You are looking at a MATCHED QUAD of NOS 6P14P-EV, best selected by curves using Roetest V10 professional tube testing system, the best tube tester that exists now, a wonderful device.If you have experience in the field of tubes you can find in the photos and in the details below the testing / sorting procedure and all the results, and if you do not have the necessary experience to understand what is explained you can trust that we deliver only very good tubes.The best method of selecting tubes in pairs is to overlap the G1/Ia curves, the superimposed curves show us that the tubes have the same plate current and the same transconductance in the whole operating range. One point matching method used with analog tube testers is a pretty good compromise solution, but identical tubes at one point can have big differences at higher or lower currents, testing in 20÷50 points with these devices and drawing curves take hours for each tube. Roetest does this quickly and with great precision.In addition to the tubes, you will receive an individual data sheet, one A4 page for each tube. The tubes (batch of 100 pcs. same data in original individual boxes and 50 pcs boxes) are tested in a very well equipped laboratory, specialized in tube testing, with very well qualified personnel and with long experience for this. All tube data can be seen in the printing protocol, all tubes meet the manufacturer’s datasheet specifications. Before measuring each tube was heated in a separate support for 30 minutes, a shorter heating leads to erroneous results and does not indicate gassy tubes. 6P14P is equivalent to many tubes, all can be seen at the bottom of the printed page (CV8069 etc.).Condition for test: Up=250V, Uscreen=250V, Ug1=-7.3V. For this sorting we accepted only tubes with 2 digits nanoA for Ig1, this means a very good vacuum inside (under 1% Ip modification with 1M2 resistor g1 series), the most important thing that must be tested for NOS tubes.You will get the best tubes selected and the best sorting in pairs that is possible. If you have a sophisticated amp with 1% tolerance components and high quality output transformer, don’t buy tubes at random with +/- 40% tolerance (means possible differences of 80% between tubes). These 80% could be found at new tubes from any producer, even some of them don’t say explicit in their datasheets. Those who use tubes are more familiar with terms like bias, gain (µ), plate current, slope/transconductance, and maybe someone is wondering what the term „D of plate” in the measured data means. Its value in itself is not so important but it is useful to calculate the other parameters taking into account Barkhausen’s tubular formula S x D x Ri = 1 (slope * penetration * internal resistance=1), where D is –dUg/dUa at Ia=const. Barkhausen vas a german physicist, he was “the guru” of tubes, his theory and formulas guided the entire period of electronic tubes. Please allow for the following shipping times: EU countries: 5-8 business days, on rare occasions a few days more USA: 10-15 business days, on rare occasions more South East Asia (Japan, Singapore, S. Korea, Hong Kong, Taiwan etc) 10 business days, on rare occasions more India, China, Russia, Kazakhstan, Pakistan, Indonesia, Malaysia, Thailand, Australia, South Africa etc: at least 15 business days, but frequently around 25 business days Please note that shipping cost is calculated at average. If you have any objections please contact me for a specific quotation.
Frequently Asked Questions About Matched QUAD 6P14P-EV /EL84/7189/ TUBES TESTED WITH ROETEST BY CURVES.NIB/OTK in My Website
designerds.com.au is the best online shopping platform where you can buy Matched QUAD 6P14P-EV /EL84/7189/ TUBES TESTED WITH ROETEST BY CURVES.NIB/OTK from renowned brand(s). designerds.com.au delivers the most unique and largest selection of products from across the world especially from the US, UK and India at best prices and the fastest delivery time.
What are the best-selling Matched QUAD 6P14P-EV /EL84/7189/ TUBES TESTED WITH ROETEST BY CURVES.NIB/OTK on designerds.com.au?
designerds.com.au helps you to shop online and delivers Descente to your doorstep. The best-selling Descente on designerds.com.au are: Men’s s Descente Black Ski Snow Pants RadiPant Size 30R Henri Charles Colsenet HCC Descente Vintage Bomber Jacket Size M DESCENTE Snowboard Ski Jacket Mens Sz M Red Zip Pockets Waterproof Winter Snow Vintage Descente Shirt Mens Large Paisley Ponte Vendra Inn & Club Golf Golfer Eddie Bauer Down Puffer Jacket Mens Medium EB800 First Ascent Packable Hooded Descente Pause Hooded Half-Zip (M) descente ski jacket Descente Vintage Small Women’s Short Sleeve Made in Japan Cycling Jersey Descente Running Women’s Black Pull on Thermal Running Leggings Base Layer Sz 2 Descente Running Hoodie Jackets Size S Womens Black Logo Long Sleeve Sports Youth Junior Ski Snowboard Jacket Descente Snowboard Size J14 DESCENTE 1/4 Zip Womens Pullover Red white Running Jacket Size Large c25 Descente Sweatshirt Mens XXLarge Crewneck Mercerized Cotton Soft Sweater DESCENTE Cart Bag Monogram Pattern Dobby Weave with Shoulder Strap Golf DQCXJA42 Descente Chinook Windbreaker Cycling Jacket Sz S – Damaged Descente Mens Pullover Convertible Windbreaker Large Black Grid Golf 90s Y2K Vtg NWT!! Descente Youth Recco technology Ski / Snowboard Jacket Size 16 Snowbasin Descente International Collection Polo Shirt Egyptian Cotton Beige Black Men M descente jacket Vintage 90s Descente red metallic puffer ski snow snowboard coat winter jacket Japanese 80’s Cycling Jersey Descente Women’s Pink Long Sleeve Pullover, Size M Descent Vtg 90s Descente Cycling Jersey Bike Bicycle Size MD Tour De France Descente cycling shirt Descente Pants Men 34 Adult Black Chino Pleated Casual Pure Wool Trousers Golf DESCENTE ~ Men’s Long Sleeve Base Layer / Cycling Jersey ~ Size M With Hoodie Descente Women’s Zip Performance Outdoor Jacket Red Black Small Vintage 90s Vertical Descent Ski AOP Crewneck Sweatshirt Size XL Magic Johnson T DESCENTE Mizusawa Down Anchor Jacket Men’s Outerwear Yellow M DESCENTE GOLF Cart Bag Straw-like Material Ring Included DQCXJA43 Women’s Descente Ski Jacket Mens Small Black Fox Sports Net Rocky Mountain Snow Ski Coat DESCENTE ALLTERRAIN Oversized Mountaineer DAMWGK32U Black XO 20018813 DESCENTE Sleeveless Tee Dry Zone Tank Top Mens Large Red Reflective NWTS Descente Mercerized Egyptian Cotton Golf Polo Gray Plaid Checks Men’s Large A Beast’s Descent Into Love by Rui Asajima / New Yaoi Manga from TOKYOPOP MICHAEL TURNER FATHOM BLUE DESCENT 2 C LE RI VARIANT COMIC SCHWARTZ 2011 NM Lot of 3 Vintage Cycling Jersey Shirt Descente Le Coq Sportif Baleno Club Descente Brand Jacket Size Medium (50) Blue Full Zip Pockets Insulated Coat Mens Panorama Kodak, Descent of the Danube Philip VIII Duke of Orleans Vintage silver pr Vintage DESCENTE Ski Snow Winter Jacket Men’s Size Medium Stowable Hood Men’s Descente DNA Size Small Green Winter Ski Snow Jacket Fishbone Frank Herbert / Direct Descent 1st Edition 1980 Vintage Descente Ski Windbreaker 1/2 Zip Hooded Jacket / Coat Teal Blue Size XL Descente TERRO Ski Jacket Size: USA M NEW regular fit Descente GOLF, Recycled Polyester Mélange 4-Way Stretch Panel Pleated Skirt HELLBOY IN HELL THE DESCENT HC (2014) CONVENTION EXCLUSIVE MIGNOLA DARK HORSE Descente Vintage 90’S neon ski snowboard jacket Marc Garcia SZ L (M7142) Vintage Descente Down Winter Ski Jacket Young Women’s Size 12 Teal 1980s Canada Descente Ski Snow Black Jacket Hooded Mens Medium Vntg Descente Polyester Cycling Logo Cap Unisex Adult White One Size Japan 2023 Spring/Summer Srixon By Descente Men’S Golf Hideki Matsuyama Pro Model Defo Descente Polo Shirt Mens L Large Gold Blue Diamond Short Sleeve Golf Pull Over DESCENTE DNA CYCLING & SKIING CLOTHING VARIOUS SPONSOR LOGO STICKER DECAL, NEW! Descente Ski Snow Snowboarding Jacket Men’s Size XXL Black S6-8629 Hooded YUGIOH Ultimate Rare Miraculous Descent EOJ-EN058 Eddie Bauer First Ascent Mountaineering Primaloft Brown jacket Size S women’s Women’s Descente Blue Cycling Zip Up Jacket Mesh Windbreaker Lightweight Medium VTG 80s 90s Descente Rattlesnake Skin Beige Tan Golf Polo Shirt Mens L EUC Descente Black Nylon Ski Snowboard Pants Men’s Size 34 Vintage Descente CSC RIIS cycling team men’s zip front sweater jacket, size M Eddie Bauer First Ascent Pertex Quantum Reversible Quilted Full Zip Jacket L MTG Descent into Avernus Commander Legends Battle for Baldur’s Gate 169 Non-Foil Descente Ski Jacket Size 14 Junior Functional Sport system Heat Navi Unisex Descente Switzerland Olimpic Swiss Team Down Jacket Puffer Mizusawa Down Descent: Legends of the Dark Hybrid Centurion Promo Figure 1878 magazine engraving ~ JESUS’ DESCENT FROM THE CROSS Descente Jacket M Medium US Ski Team Snow Retro Blue Red White Vintage Japan Armenia MNH** 1993 Mi 220 Scott 458 Ivan Aivazovsky Noah’s descent mount Ararat Descente Womens Size Large Short Sleeve Cycling Jersey Shirt Underwater Reef Descente Ski Pants Mens US 40 Brown Insulated Ski Snowboarding Sporting Goods Descente Jacket Womens 8 Purple Teal Vintage 90s Retro Winter Ski Coat Bomber Descente Boys Winter Coat Size: 16/160 Hooded Zip Ski Snowboard BACK TO SCHOOL Direct Descent Descente Men’s Zip Sherpa Fleece Jacket Black Gray Sz M DESCENTE Down Jacket / Down Vest Black S 2200407903012 vintage Descente Team CSC cycling jersey Men’s Medium full zip Riis Julich Descente 1/4 Zip Ski Snowboarding Outdoor Long Sleeve Shirt Sweater Red Size Med Descente Golf Collection Black Brown Short Sleeve Polo Shirt Medium River Place Descente Blue Ski Parka Made Japan Vintage VERY NICE MENS DESCENTE LONG SLEEVE 1/4 ZIP PULLOVER SIZE L LARGE Descente Men’s Neon Yellow Long Sleeve Full Zip Collared Lightweight Jacket Sz L EUC Vintage Men’s Descente Metallic Blue Puffer Zip Vest Winter Ski Size Medium RARE Vintage Mens Medium Descente Warmup Jacket w Iconic Logo Style*Snazzy Color [L] Descente Down Coat Long Length Hooded pa4 Petite Large EDDIE BAUER Fleece Jacket 1/4 Zip Pullover White First Ascent Kyoto Japan Descente Baseball Mens Blue Polyester Polo Shirt Size L* /105cm Descente VTG Men Black Ski Snowboard Pants Zip Pockets Insulated Size 38 (30×32) Descente Beanie-Youth Size-Black-Wool-Embroidered Logo-Made In Canada-Read Eddie Bauer Men’s Red First Ascent Full Zip Fleece Polartec Jacket Size Large DESCENTE Women’s Cycling Swiss Triathlon Windbreaker Vest Size S Made in Japan Srixon Golf by Descente Polo Shirt Size Medium ( Listed in Japan Size ) Descente Black Insulated Ski Pants Mens 36R Winter Snowboard 36 X 30, 31 Vintage Descente International Collection Mens Shirt L Blue Black Geometric Golf Polo Legion Erinyes – Baldur’s Gate Descent into Avernus #23 D&D Dungeon Miniature Vintage Descente Ski Jacket Adult Large White Skiing Winter Coat snow boarding Srixon Golf by Descente Polo Shirt Size Medium ( Listed in Japan Size ) DESCENTE Women’s Down Jacket Cream Ivory DIA3590WU Size 8 /S Repair Descente Allterrain Cool Dot Packable Jacket Size S DXV55 Vintage Descente Ski Winter Jacket Parka Hood Full Zip Men’s Gray Size Medium Descente Womens Collared Fur Trimmed Hooded Zipped Long Sleeve Coat Beige Size 6 Mens Pullover Fleece Hoodie